* Add new var $valid_schema_properties to match rest_validate_value_from_schema() * Unit test to ensure all valid properties exists, and non-valid properties are ignored Fixes: #50301. Props: pentatonicfunk, TimothyBlynJacobs. git-svn-id: https://develop.svn.wordpress.org/trunk@47911 602fd350-edb4-49c9-b593-d223f7449a82